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Epson Research and Development Page 15
Vancouver Design Center
Windows® CE 3.x Display Drivers S1D13705
Issue Date: 01/05/25 X27A-E-006-01
Simple Display Driver Configuration
The following display driver configuration should work with most platforms running
Windows CE. This configuration disables the use of off-screen display memory and forces
the system to redraw the main display upon power-on.
1. This step disables the use of off-screen display memory.
Edit the file x:\wince300\platform\cepc\drivers\display\S1D13705\sources and
change the line
CDEFINES=$(CDEFINES) -DEnablePreferVmem
to
#CDEFINES=$(CDEFINES) -DEnablePreferVmem
2. This step causes the system to redraw the main display upon power-on. This step is
only required if display memory loses power when Windows CE is shut down. If dis-
play memory is kept powered up (set the S1D13705 in powersave mode), then the dis-
play data will be maintained and this step can be skipped.
Search for the file PROJECT.REG in your Windows CE directories, and inside
PROJECT.REG find the key PORepaint. Change PORepaint as follows:
“PORepaint”=dword:2